{1} FixedPoint(59,50)[label('S1'),cyan]; {2} FixedPoint(246,194)[label('S2'),red]; {3} FixedPoint(19,250)[label('S3'),green]; {4} Parameter(4,1,172,'Distance1')[hidden]; {5} Parameter(5,3,172,'Distance2')[hidden]; {6} Parameter(6,5,172,'Distance3')[hidden]; {7} Calculate(0,0,'a','A10.0 *')(4)[hidden]; {8} Calculate(0,0,'a','A10.0 *')(5)[hidden]; {9} Calculate(0,0,'a','A10.0 *')(6)[hidden]; {10} Translation/FixedAngle/MarkedDistance(1,7,0.00000000)[hidden]; {11} Translation/FixedAngle/MarkedDistance(2,8,0.00000000)[hidden]; {12} Translation/FixedAngle/MarkedDistance(3,9,0.00000000)[hidden]; {13} Circle(1,10)[cyan]; {14} Circle(2,11)[red]; {15} Circle(3,12)[green]; {16} Image(0,0,'earthquake3mod.gif'); On January 12, 2000, an earthquake occurred somewhere on this map. Three seismograph stations measured time differences between P and S waves:

Station 1: 26 seconds
Station 2: 24 seconds
Station 3: 28 seconds ]]>